Portland, ME Sign Regulations: Holiday Displays (2026)

Maine state sign law and Portland's zoning code regulate "signs" — a visual device intended to convey a commercial, advertising, identification, or political message. Ordinary holiday decorations (string lights, wreaths, lighted reindeer, inflatable snowmen, menorahs, religious nativity scenes on private property) are not signs and so fall outside the permitting framework. There is no Portland ordinance imposing a calendar-window restriction on residential holiday displays. The displays remain subject to: (1) Portland Land Use Code Chapter 14 setback and sightline rules where structures are involved; (2) Maine's on-premises sign limit of 50 sq ft (23 M.R.S. §1914) if a display does cross into advertising; (3) Portland's Historic Preservation chapter (Chapter 14 Article IX) for properties within the Munjoy Hill, Old Port, India Street, Spring Street, Stroudwater, or West End historic districts, which can require approval for permanent exterior changes; (4) the Maine state electrical code (Title 32, Chapter 17) for any extension-cord or temporary wiring that crosses public ways. Lights that intrude onto neighboring property may give rise to common-law nuisance claims under Maine common law.